chore(gae): Update region tag (#4017)

hivanalejandro · iennae · web-flow · commit 73d8c321a14c · 2025-03-06T09:39:43.000-08:00
Co-authored-by: Jennifer Davis &lt;sigje@google.com&gt;
diff --git a/appengine/building-an-app/update/app.yaml b/appengine/building-an-app/update/app.yaml
@@ -11,6 +11,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# [START gae_app_yaml]
 # [START app_yaml]
 runtime: nodejs20
 # [END app_yaml]
+# [END gae_app_yaml]
